# low-background steel

> steel produced prior to the detonation of the first atomic bombs in the 1940s and 1950s, and so not contaminated with radionuclides

**Wikidata**: [Q6692715](https://www.wikidata.org/wiki/Q6692715)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Low-background_steel)  
**Source**: https://4ort.xyz/entity/low-background-steel